Electrocardiographic characteristics and mapping approach of ventricular arrhythmias originating from the left ventricular summit.

Authors :: Banavalikar B
Shenthar J
Source :: Journal of electrocardiology [J Electrocardiol] 2018 Jul - Aug; Vol. 51 (4), pp. 687-690. Date of Electronic Publication: 2018 Apr 04.
Publication Year :: 2018
Abstract: The left ventricular summit is the most common site of idiopathic epicardial ventricular tachycardia (VT). We report a case of a 48-yr-old lady who presented with VT of RBBB configuration, inferior axis and delayed initial activation. During electrophysiological study, local activation in the distal great cardiac vein (GCV) preceded surface QRS by 56 ms whereas mapping in the aortic sinuses and left ventricular outflow tract endocardially revealed late activation. Ablation in the distal GCV with an irrigated catheter successfully terminated the tachycardia. The 12‑lead electrocardiogram is an invaluable tool for predicting the VT focus and planning the mapping strategy.<br /> (Copyright © 2018 Elsevier Inc. All rights reserved.)

Subjects :: Coronary Sinus physiopathology
Coronary Vessels physiopathology
Echocardiography
Endocardium physiopathology
Female
Heart Ventricles diagnostic imaging
Humans
Image Processing, Computer-Assisted
Middle Aged
Tachycardia, Ventricular diagnosis
Tomography, X-Ray Computed
Electrocardiography
Radiofrequency Ablation methods
Tachycardia, Ventricular surgery

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